Remove rear seat base, bend up tags on rear seat corner pieces and remove them. Remove headrests. Remove headrest support tubes (X6 just squeeze in tags at the rear of tube). Fold down the seat backrest. Remove clip the that secures the centre arm rest in the upright postion. remove the three push in clips holding the front edge of the parcel shelf. Remove the trim strip along the bottom edge of the parcel shelf. release the trim piece over the centre seat belt.
Now in boot, undo the three nuts. At the extreme rear edge of shelf just under rear window there are three clips, I find t easier to squeeze with pliers and just push in a little bit to release.
Disconnect wiring. Now it is a case of manouvering the shelf out, I find it easier to withdraw from one side. At this point it gets involved wth the rear seat belts at each side.. It will come out but is a bit of a fiddle.
The rubber bellows type things just pull put.
This was on a CDX model and you may have Bose speakers to consider.
HTH
I found with mine I had to lubricate the top bearing on the motor gears as it was dry. Do not attempt to operate the blind with t removed from the shelf. The mechanism twists and the motor does not have the power to raise t properly when twisted.